Texas Instruments DAC7741EVM manual EVM Block Diagram

Page 12

EVM Basic Functions

A block diagram of the EVM is shown below in the Figure 1-1.

Figure 1-1. EVM Block Diagram

DAC Out

W13

(J4)

(J5)

	+15 V
	-15 V
			VCC	(J6)
			VCC	(J7)
			VDD	(J7)
			VDD
		External	VSS
	W14	Reference
	W14	Module
		Module
Output	TP1	W4
Buffer	TP1	W4
Buffer
Module	+REFIN		W3
	+REFIN		W3

Ext Ref

Input

REFIN REFout

DAC Module

(J2)

(J3)

+15 V

GND

-15 V

GND

VCC

VDD VSS

REFEN

LDAC

RST RSTSEL

CS

R/W

TP2

(J1)

DB15 (MSB)

DB1 (LSB)

1-4

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Contents User’s Guide Important Notice EVM Important Notice EVM Warnings and Restrictions Read This First About This ManualRelated Documentation From Texas Instruments Contents FiguresTables Features Power Requirements EVM Basic Functions EVM OverviewFeatures Power RequirementsEVM Basic Functions EVM Block Diagram Physical Description PCB Layout Bill of MaterialsPCB Layout Layer One Top SilkscreenLayer Two Ground Plane Layer 3 Power Plane Layer 4 Bottom Plane Drill Drawing Parts List Bill of MaterialsThis page has been left blank intentionally EVM Operation Factory Default Setting Factory Default Jumper SettingReference Jumper Function Position Unity Gain Output Jumper Settings Host Processor OperationReference Unipolar BipolarGain of Two Output Jumper Settings Capacitive Load Drive Output Jumper SettingsReference Jumper Setting Function Jumper Setting Jumper Setting FunctionReference Jumper Function Jumper Function Setting Schematic Schematic of the DAC7741 is found on the followingDAC7741